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OpenStudy (anonymous):

The equation of the line of symmetry pf the curve y=x^(2)+px+21 is x=4. Find the value of p. help me please...

OpenStudy (anonymous):

hey..

OpenStudy (anonymous):

hy y you become my fan???????

OpenStudy (anonymous):

I don't know XD

OpenStudy (anonymous):

there are three methods basically first method:- find the zeros of the equations because as the line is symmetrical so it is passes through the midpoint of these zeros so|dw:1352201941148:dw| so p=-4*2=-8:)

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